Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FOUNDATION PILE AND FOUNDATION CONSTRUCTION METHOD USING THE FOUNDATION PILE
To provide a foundation pile that has good workability and construction controllability when building foundations for large superstructures using prefabricated piles and can obtain a high pile support force, and a foundation construction method using the foundation pile.SOLUTION: A foundation pile 1 is formed by inserting a prefabricated pile 5 into a drilled pile hole 2 and filling a space between an inner wall of the pile hole 2 and the prefabricated pile 5 with foot protection liquid and pile circumferential fixing liquid. The straight pile hole 2 does not have an enlarged diameter portion at a foot protection portion, and has the same pile hole diameter from the foot protection portion to a pile peripheral portion above the foot protection portion. A pile diameter Dat a tip of the prefabricated pile 5 filled with foot protection liquid at the periphery is 300 to 1,200 mm, and a ratio D/Dbetween the pile diameter Dand the pile hole diameter Dis 1.3 to 2.5. When building multiple foundation piles 1 for large structures, the prefabricated piles 5 having the same pile diameter Dare used for multiple foundation piles 1 with required pile tip support force different depending on the position, and the pile hole diameter Dis set for each foundation pile in the range of D/D=1.3 to 2.5 according to the pile tip support force required for each foundation pile 1.SELECTED DRAWING: Figure 2
【課題】既製杭を用いて大型上部構造物の基礎を構築する際に施工性や施工管理性が良く、高い杭支持力が得られる基礎杭と基礎杭を用いた基礎の構築方法を提供する。【解決手段】基礎杭１は、削孔された杭孔２に既製杭５を挿入され、杭孔２の内壁と既製杭５との間に根固め液及び杭周固定液が充填されてなり、根固め部に拡径部を有さず、根固め部からその上方の杭周部に亘って同一の杭孔径を有するストレートな杭孔２であり、周囲を根固め液で充たされた既製杭５の先端部における杭径Ｄ１は300〜1200ｍｍで、かつ杭径Ｄ１と杭孔径Ｄ２との比Ｄ２／Ｄ１が1.3〜2.5である。大型構造物の基礎杭１を複数構築する場合、位置により必要な杭先端支持力が異なる複数の基礎杭１について同一の杭径Ｄ１を有する既製杭５を用い、個々の基礎杭１が必要な杭先端支持力に応じ、Ｄ２／Ｄ１＝1.3〜2.5となる範囲で基礎杭毎に杭孔径Ｄ２を設定する。【選択図】図２
FOUNDATION PILE AND FOUNDATION CONSTRUCTION METHOD USING THE FOUNDATION PILE
To provide a foundation pile that has good workability and construction controllability when building foundations for large superstructures using prefabricated piles and can obtain a high pile support force, and a foundation construction method using the foundation pile.SOLUTION: A foundation pile 1 is formed by inserting a prefabricated pile 5 into a drilled pile hole 2 and filling a space between an inner wall of the pile hole 2 and the prefabricated pile 5 with foot protection liquid and pile circumferential fixing liquid. The straight pile hole 2 does not have an enlarged diameter portion at a foot protection portion, and has the same pile hole diameter from the foot protection portion to a pile peripheral portion above the foot protection portion. A pile diameter Dat a tip of the prefabricated pile 5 filled with foot protection liquid at the periphery is 300 to 1,200 mm, and a ratio D/Dbetween the pile diameter Dand the pile hole diameter Dis 1.3 to 2.5. When building multiple foundation piles 1 for large structures, the prefabricated piles 5 having the same pile diameter Dare used for multiple foundation piles 1 with required pile tip support force different depending on the position, and the pile hole diameter Dis set for each foundation pile in the range of D/D=1.3 to 2.5 according to the pile tip support force required for each foundation pile 1.SELECTED DRAWING: Figure 2
【課題】既製杭を用いて大型上部構造物の基礎を構築する際に施工性や施工管理性が良く、高い杭支持力が得られる基礎杭と基礎杭を用いた基礎の構築方法を提供する。【解決手段】基礎杭１は、削孔された杭孔２に既製杭５を挿入され、杭孔２の内壁と既製杭５との間に根固め液及び杭周固定液が充填されてなり、根固め部に拡径部を有さず、根固め部からその上方の杭周部に亘って同一の杭孔径を有するストレートな杭孔２であり、周囲を根固め液で充たされた既製杭５の先端部における杭径Ｄ１は300〜1200ｍｍで、かつ杭径Ｄ１と杭孔径Ｄ２との比Ｄ２／Ｄ１が1.3〜2.5である。大型構造物の基礎杭１を複数構築する場合、位置により必要な杭先端支持力が異なる複数の基礎杭１について同一の杭径Ｄ１を有する既製杭５を用い、個々の基礎杭１が必要な杭先端支持力に応じ、Ｄ２／Ｄ１＝1.3〜2.5となる範囲で基礎杭毎に杭孔径Ｄ２を設定する。【選択図】図２
FOUNDATION PILE AND FOUNDATION CONSTRUCTION METHOD USING THE FOUNDATION PILE
基礎杭、該基礎杭を用いた基礎の構築方法
MATSUE SHIGENAO (Autor:in) / NISHIMURA YUTAKA (Autor:in)
24.10.2019
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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